Transparent coating member for light-emitting diodes and a fluorescent color light source
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United States of America Patent
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Nov 20, 2001
Issued Date -
N/A
app pub date -
Feb 8, 2000
filing date -
Jul 7, 1997
priority date (Note) -
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Abstract
This invention relates to a transparent coating member mountable on a light-emitting diode including a fluorescent substance and a light diffusion substance including calcium carbonate in order to reduce color variation at various locations of a transparent coating member and also reduce manufacturing costs of the transparent coating member without significantly lower the level of chromaticity. Furthermore, this invention relates to a transparent coating member mountable on a light-emitting diode (LED) including a fluorescent substance and a light storing pigment. This structure allows an exhibition of afterglow of the transparent coating member after turning off the light in a room so that locating the position of the transparent coating member is made easier thereafter. The light diffusion substance and the light storing pigment can be added to the transparent coating member to acquire both advantages derived from respective substances.
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